Index: ash/system/overview/overview_button_tray.h |
diff --git a/ash/system/overview/overview_button_tray.h b/ash/system/overview/overview_button_tray.h |
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+// Copyright 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_ |
+#define ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_ |
+ |
+#include "ash/ash_export.h" |
+#include "ash/shell_observer.h" |
+#include "ash/system/tray/tray_background_view.h" |
+ |
+namespace views { |
+class ImageView; |
+} |
+ |
+namespace ash { |
+ |
+// Status area tray for showing a toggle for Overview Mode. Overview Mode |
+// is equivalent to WindowSelectorController being in selection mode. |
+// This hosts a ShellObserver that listens for the activation of Maximize Mode |
+// This tray will only be visible while in this state. This tray does not |
+// provide any bubble view windows. |
+class ASH_EXPORT OverviewButtonTray : public internal::TrayBackgroundView, |
+ public ShellObserver { |
+ public: |
+ explicit OverviewButtonTray(internal::StatusAreaWidget* status_area_widget); |
+ virtual ~OverviewButtonTray(); |
+ |
+ // internal::ActionableView: |
+ virtual bool PerformAction(const ui::Event& event) OVERRIDE; |
+ |
+ // ShellObserver: |
+ virtual void OnMaximizeModeStarted() OVERRIDE; |
+ virtual void OnMaximizeModeEnded() OVERRIDE; |
+ |
+ // internal::TrayBackgroundView: |
+ virtual bool ClickedOutsideBubble() OVERRIDE; |
+ virtual base::string16 GetAccessibleNameForTray() OVERRIDE; |
+ virtual void HideBubbleWithView( |
+ const views::TrayBubbleView* bubble_view) OVERRIDE; |
+ virtual void SetShelfAlignment(ShelfAlignment alignment) OVERRIDE; |
+ |
+ private: |
+ friend class OverviewButtonTrayTest; |
+ |
+ // Creates a new border for the icon. The padding is determined based on the |
+ // alignment of the shelf. |
+ void SetIconBorderForShelfAlignment(); |
+ |
+ // Weak pointer, will be parented by TrayContainer for its lifetime. |
+ views::ImageView* icon_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(OverviewButtonTray); |
+}; |
+ |
+} // namespace ash |
+ |
+#endif // ASH_SYSTEM_OVERVIEW_OVERVIEW_BUTTON_TRAY_H_ |